Sulphur-Detecting Plane (IMAGE) Chalmers University of Technology Caption This is the inside of the sulphur-detecting plane. The sniffer is the big box on the left. Credit Johan Mellqvist Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.